The group's airlines - Scandinavian, Widerøe and Blue1 - will adopt the full Altéa CMS to manage their global sales and reservations, inventory and departure control processes.
SAS said the solution would support the airlines' own websites and drive online sales alongside their existing e-commerce systems.
Amadeus will implement the new technology platform for the airlines through a phased migration process starting in 2010.
‘We are pleased to have signed a long-term agreement that will replace our legacy passenger service systems with a modern and standardised community solution,' said Mats Fagerlund, senior vice president and chief information officer for SAS.
Altéa CMS is a shared platform used by over 100 airlines and offering connectivity to more than 100,000 travel agency locations worldwide for sales.
A shared platform is especially relevant in the current economic environment, said Julia Sattel, Amadeus vice president, airline IT.
‘Shared costs to maintain and further develop the system, a variable per passenger boarded fee structure and eased integration with an airline's commercial partners who use the same platform, including travel agencies, all mean incomparable cost efficiencies for the SAS Group,' she explained.
‘Scandinavian Airlines is also the eleventh member of the Star Alliance to select our suite of customer management technology.
‘With these unique advantages in perspective, we are confident Amadeus technology can support SAS Group's revamped strategy.'